题目

下列关于生态茶园管理措施的分析，错误的是（ ）A．使用诱虫灯诱杀害虫，可减少农药的使用B．套种豆科植物作为绿肥，可提高土壤肥力C．利用茶树废枝栽培灵芝，可提高能量的传递效率D．修剪茶树枝叶通风透光，可提高光合作用强度 答案：【答案】C【解析】农业生产中信息传递的应用：（1）提高农产品和畜产品产量。（2）对有害动物进行控制。A、用黑光灯诱杀害虫属于生物防治，该技术可减少农药的使用，降低环境污染，A正确;B、豆科植物具有生物固氮能力，可将空气中的氮(N2）转变为含氮的养料，故套种豆科植物作为绿肥，可提高Betty and I are best friends . Our birthdays are on the same day, so every year we have a birthday party together. But this year ,we had a costume party instead.While we were writing the invitations, my mum came in and asked, “Why not invite John?”John had been in our class for only a few months , but he was always getting better grades in math than anyone else in class. I wrinkled（皱起）my nose and said, “Mum, he wears the same pants to school every day. How could he even afford a costume?”Mum said nothing . The next day, mum gave me an envelope with a shopping certificate（凭证）in it. “I thought it would be nice of you to give this to John ,”mum said. But how? We didn’t want to make John embarrassed. We discussed it for a long time . Finally, Betty and I had a good idea.On the day of our party, kids arrived, dressed differently. John arrived, in an old sheet（床单）,but still in the same brown pants as usual. We danced , ate snacks and played games in groups. Before eating the birthday cake, Betty said in la loud voice, “Now it’s time for the great prize game, It’s the following riddle …”It was a math game. None of us was surprised when John came up with the right answer first and walked off with the envelope.Everything went on well as we planned. John wore a new pair of pants and a new shirt the next week. He felt happy . So did we.When we helped others , we need to find a proper way, or we may hurt them in another way.1.The two girls and John were in the same_________.A.group B. family C. team D. class2.John’s family may be very______according to the passage.A. far B. poor C. rich D.small3.How did John get the prize during the party?A. By helping others.B.By asking for help.C.By getting good grades in study.D.By winning the math game.4.John______with the shopping certificate after the party.A.watched a basketball matchB.saw a movieC. bought something to wearD. made a phone call5.The two girls felt_________when they found John wearing his new clothes.A. happy B. sorry C. sad D. Angry